delete_random.php
Contains PHP code displaying records from database. Take a look at class="delete_button"

<a href="#" id="" class="delete_button">X

jQuery code
Contains javascipt code. $(".delete_button").click(function(){}- delete_button is the class name of anchor tag (X). Using element.attr("id") calling delete button value. If id value is even number if(id(even) % 2) = If(0) false

$(function() {
$(".delete_button").click(function() {
var id = $(this).attr("id");
var dataString = 'id='+ id ;
var parent = $(this).parent();

$.ajax({
type: "POST",
url: "deleteajax.php",
data: dataString,
cache: false,

success: function()
{
if(id % 2)
{
parent.fadeOut('slow', function() {$(this).remove();});
}
else
{
parent.slideUp('slow', function() {$(this).remove();});
}
}
});

return false;
});
});

deleteajax.php
Contains PHP code. Delete record from the database.

CSS Code
*{margin:0;padding:0;}
ol.update
{
list-style:none;font-size:1.2em;
}
ol.update li
{
height:50px; border-bottom:#dedede dashed 1px;
}
ol.update li:first-child
{
border-top:#dedede dashed 1px; height:50px;
}
#main
{
width:500px; margin-top:20px; margin-left:100px;
font-family:"Trebuchet MS";
}
.delete_button
{
margin-left:10px;
font-weight:bold;
float:right;
}